Slide-valve.



39H55' il?. MILLER, im RLN'TQUL, XLLINGS.

pecicstion o Letters Fateut. l

Patented Apr. 20, i915.

,my Application filed May 5130, wie. Serial No. fl.

To aZlwzO/'lz it may concern,

Beqi't known that l, JOHN W. MILLER, a citizen oithe United States, and resident of Rantoul, in the county of vChampaign and si State of illinois, have invented certain new of which the 'following is a specification.

and useful improvements in Slide-Valves.,

My invention relates to slide valves `for engines, and the main object thereof 1s toV provide means whereby such valves will automatically find a seat and which, at the ametime, position the valve with respect y tothe ports.

further object is to provide^ conical` stops for the valve movement on its rod, whereby the valve travels a predetermined .distance up 4the bevel or incline of the cori'esfonding cone upon the abrupt stop of the lib dii

to begin its reverse movement, this act-k 20 ng'es a cushion for the valve to take the valve impact resiliently and thus avoid beating oit the anges at the valve ends, and also the stripping ofthe screw-threads on" the/fed."

further object is to balance or suspend the valve from said -cones in order to prevent the same from dragging on its seat, and` whereby it will'neither stick, cock, nor

- hlevzg i My invention is fully set forth in the fol- 4lo'ivn specification, of which the accompanying drawings form a part, in which thn'smne partsA are designated by the same reiie'rencel characters in each of the views, and in which Figure 1 is a section taken through a slide valve,'showing its connection with the rod thereof, and also showing a portion of the enginecylinder and et i chest in dotted lines seid section bei en approximately 0n the line l--ll of v 2; and Fig. 2 is a section taken on t ie 2-2 of Fig, l.

In the draw ,orming a part of this eppiieatien have shown a slide valve a, of subs'iientially conventional construction, but

` provided with a longitudinal bore a2, and

the ends of .which are outwardly flared, as

v shown at o", a valve rod being extended vthrough the bore a? and beyond the outer end ofthe valve, and said rod is screwthreaded, as'shown atbi, for a length en-` ceeding that ofthe valve;

Threaded on the portion h2 oi the rod `b, atthe yinner end of tiievalve, is scene e, .ing an integral ila-nge ci* thereon "ed beyond whieliie an' angular not ci,

4 tapered outwardly'fin the ysaine degree as the` ila-red portion dei the bore. Also threaded on the saidrrod, at the opposite valve end, is a cone d in all respects similar to the cone c, having a flange (Z2 and angular portion di thereon and adaptel to be locked on said rod by means of a jan t di, the details of this construction being-clearly illustrated at the right handeiidJOl the valve, in nig. i. t

In assenfibling the parte the jam-nut c4 is iirst threaded onto the rod. and into approximate position which it will occupy, after which the cone c and connected members is screwed onto the rod into close proximity to the jam-nut o4, the valve boing then arranged in position with the rod pass- 'ingy therethrough, the cone d being next are tightened against their respective cones,l

the valve is held on the rod butis movable longitudinally thereof between cones, and transversely thereof for a distance determined by the relative diameters of the valve bore and the cones at the points of valve suspension.

` Hit is desired to adjust the valve with respect to thelrod, and thereby with lrespect to the cylinder ports, all that is necessary is to loosen the jam-nut. at the side of the valve toward which the valve is to be moved, revolve the corresponding cone d on the rod until. the desired adjustment thereof has been made, lock the same in position, lmove the valve adjacent, revolve the other cone c until it is in contact with the valve, and then lock the saine in this position by means of.

the jam-nuts c4 and d", this adjustment of the valve being possible in either direction on the rod, as will be seen.

inder ports, the cones are moved lupfto .just toi/:loll the corresponding flared portions of .vhen' ,Se seated in proper relationship Witlsgthe cyl-U here, whereby tire ectuaLvveight of the valve is suspended from the cones but in such manner as to permit both longitudinal and transverse movements thereof with respect to the rod.

While I have shown jam-nuts for locking my cones in position, I do' not limit myself thereto, asy clamps or other devices may be substituted therefor, my invention residing in the readily adjustable means for holding' -valve having ay relatively large bore longig' tudinally arranged therein and the ends `f which are outwardly flared, a screw-threaded rod passed through said bore, and adjustable, cone shaped, locking means for said valve on said rod, and engaged in said flared ends of said bore.

2. In an engine, the 'combination of' a" slide valve having a relatively large lon-'gr cone shaped, nuts on said rod, at

tudinal bore therethrough, the ends of which are outwardly flared, a screw-threaded rod passed through said bore, adjustable, each valve end, engaged in corresponding flared bore ends, to lock said valve to said rod, and means for locking said nuts against move* ment.

In an engine, the combination of a slide valve having a relatively large bore longitudinally arranged therein and .the ends of which areoutwardly ared,a screwthreaded rod passed throughV said bore, ad-v justable, cone shaped, nuts on said rod, one at each valve end and engaged in the corresponding flared end, to loeksaid valve on said rod, and means for locking said nuts against movement, lthe inclination of' said dared ends and nuts being such as to take the longitudinal end thrust of said valve on sald rod in a resisting manner by reason of the Weight of said valve, and each of said*L nuts having a liange thereon to limit such end thrust. A

.In testimony whereof I have signed my name to this'speeication in the presence of the subscribing Witnesses.,

f JOHN W. MILLER. @Witnessesz ADAM DECK, l

WILLIAM C. PATTERSON. 

